Voice signalling
50
SmartNode 4950 User Manual
B • Specifications
G.711 Fax-Bypass
Voice signalling
SIPv2
H.323v4
SIP call transfer, redirect
Overlap or en-bloc dialing
DTMF in-band, out-of-band
Configurable progress tones
Voice routing—session router
Local switching (hairpinning)
Least cost routing
Interface huntgroups
Call-Distribution groups
Number blocking
Call Routing Criteria:
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Interface
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Calling/called party number
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Time of day, day of week, date
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ISDN bearer capability
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Various other information elements (IEs) of the ISDN setup
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Wildcard and regular expression matching
Regular expression number manipulation functions:
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Replace numbers
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Add/remove digits
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Pattern matching and replacement
IP services
IPv4 router; RIPv1, v2 (RFC 1058 and 2453)
Programmable static routes
ICMP redirect (RFC 792); Packet fragmentation
DiffServe/ToS set or queue per header bits
Packet Policing discards excess traffic
